Took me long enough but I finally got around to mounting it on my shotgun. Very pleased with it. The dot is easy to see in bright sunlight and the mount is low enough that I can hold my cheek weld. The sight itself is tiny and out of the way and does not get in the way of my lock mount. I've shot twenty plus rounds of Winchester 1oz slugs and a bunch of federal and winchester RR slugs. No problems. When I mounted it I did not torque down or locktight or anything else because of a paint job I'm about to do. The sight held tight and didn't loosen or move at all.